package com.cn.shine.common.utils;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFClientAnchor;
import org.apache.poi.hssf.usermodel.HSSFComment;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFPatriarch;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.ss.util.CellRangeAddress;

public class ExportExcelUtil {

	private final static String author = "唯书阁";

	public void exportExcel(Collection<String[]> dataset, OutputStream out) {
		exportExcel("", "测试POI导出EXCEL文档","","", null, dataset, out, "yyyy-MM-dd");
	}

	public void exportExcel(String rootPath, String title,String title1,String title2, String[] headers,
			Collection<String[]> dataset, OutputStream out) {
		exportExcel(rootPath, title,title1,title2, headers, dataset, out, "yyyy-MM-dd");
	}

	public void exportExcel(String[] headers, Collection<String[]> dataset,
			OutputStream out, String pattern) {
		exportExcel("", "测试POI导出EXCEL文档","","", headers, dataset, out, pattern);
	}

	/**
	 * 这是一个通用的方法，可以将放置在JAVA集合中并且符号一定条件的数据以EXCEL 的形式输出到指定IO设备上
	 * 
	 * @param title
	 *            表格标题名
	 * @param headers
	 *            表格属性列名数组
	 * @param dataset
	 *            需要显示的数据集合
	 * @param out
	 *            与输出设备关联的流对象，可以将EXCEL文档导出到本地文件或者网络中
	 * @param pattern
	 *            如果有时间数据，设定输出格式。默认为"yyy-MM-dd"
	 */
	public void exportExcel(String rootPath, String title,String title1,String title2, String[] headers,
			Collection<String[]> dataset, OutputStream out, String pattern) {
		// 声明一个工作薄
		HSSFWorkbook workbook = new HSSFWorkbook();
		// 生成一个表格
		HSSFSheet sheet = workbook.createSheet(title);
		// 设置表格默认列宽度为15个字节
		sheet.setDefaultColumnWidth((int) 15);

		// 声明一个画图的顶级管理器
		HSSFPatriarch patriarch = sheet.createDrawingPatriarch();
		// 定义注释的大小和位置,详见文档
		HSSFComment comment = patriarch.createComment(new HSSFClientAnchor(0,
				0, 0, 0, (short) 4, 2, (short) 6, 5));
		// 设置注释内容
		comment.setString(new HSSFRichTextString("可以在POI中添加注释！"));
		// 设置注释作者，当鼠标移动到单元格上是可以在状态栏中看到该内容.
		comment.setAuthor(author);
		int index = 0;// 控制excel行数

		HSSFCellStyle style = getTitleStyle(workbook);// 设置标题style
		CellRangeAddress cra = new CellRangeAddress(index, index, 0,
				headers.length - 1);
		// 在sheet里增加合并单元格 设置标题
		sheet.addMergedRegion(cra);
		HSSFRow row = sheet.createRow(index);// 设置头部标题
		HSSFCell cell_1 = row.createCell(0);
		cell_1.setCellStyle(style);
		cell_1.setCellValue(new HSSFRichTextString(title));
		
		//生成副标题1
		index++;// 移行
		HSSFCellStyle style1 = getTitle1Style(workbook);// 设置标题style
		CellRangeAddress cra1 = new CellRangeAddress(index, index, 0,
				headers.length - 1);
		// 在sheet里增加合并单元格 设置标题
		sheet.addMergedRegion(cra1);
		HSSFRow row1 = sheet.createRow(index);// 设置头部标题
		HSSFCell cell_2 = row1.createCell(0);
		cell_2.setCellStyle(style1);
		cell_2.setCellValue(new HSSFRichTextString(title1));
		
		//生成副标题2
		index++;// 移行
		//HSSFCellStyle style = getTitleStyle(workbook);// 设置标题style
		CellRangeAddress cra2 = new CellRangeAddress(index, index, 0,
				headers.length - 1);
		// 在sheet里增加合并单元格 设置标题
		sheet.addMergedRegion(cra2);
		HSSFRow row2 = sheet.createRow(index);// 设置头部标题
		HSSFCell cell_3 = row2.createCell(0);
		cell_3.setCellStyle(style1);
		cell_3.setCellValue(new HSSFRichTextString(title2));
		
		HSSFCellStyle style2 = getHeaderStyle(workbook);// 设置Header style
		index++;// 移行
		row = sheet.createRow(index);// 产生表格标题行
		for (int i = 0; i < headers.length; i++) {
			HSSFCell cell = row.createCell(i);
			cell.setCellStyle(style2);
			HSSFRichTextString text = new HSSFRichTextString(headers[i]);
			cell.setCellValue(text);
		}
		Iterator<String[]> it = dataset.iterator();// 遍历集合数据，产生数据行

		style = getBodyStyle(workbook);// 设置字体样式
		while (it.hasNext()) {
			index++;
			//System.out.println(index);
			row = sheet.createRow(index);
			String[] t = (String[]) it.next();
			for (int i = 0; i < t.length; i++) {
				HSSFCell cell = row.createCell(i);
				cell.setCellStyle(style);
				// 判断值的类型后进行强制类型转换
				String textValue = t[i];
				HSSFRichTextString richString = new HSSFRichTextString(
						textValue);
				// if (textValue.startsWith("0")) {
				// System.out.println(textValue);
				// font3.setColor(HSSFColor.BLUE.index);
				// } else {
				// font3.setColor(HSSFColor.RED.index);
				// }
				// richString.applyFont(font3);
				cell.setCellValue(richString);

				// else if (value instanceof byte[]) { // 有图片时，设置行高为60px;
				// row.setHeightInPoints(60); // 设置图片所在列宽度为80px,注意这里单位的一个换算
				// sheet.setColumnWidth(i, (short) (35.7 * 80)); //
				// sheet.autoSizeColumn(i); byte[] bsValue = (byte[]) value;
				// HSSFClientAnchor anchor = new HSSFClientAnchor(0, 0, 1023,
				// 255, (short) 6, index, (short) 6, index);
				// anchor.setAnchorType(2); patriarch.createPicture(anchor,
				// workbook.addPicture( bsValue,
				// HSSFWorkbook.PICTURE_TYPE_JPEG)); } else{ //其它数据类型都当作字符串简单处理
				// textValue = value.toString(); }

			}
		}
		try {
			workbook.write(out);
		} catch (IOException e) {
			e.printStackTrace();
		}

	}

	public static void main(String[] args) {

		String title = "金牛区派出所报备统计数据";
		String[] headers = { "机构名称", "值班领导", "值班主任", "第一接待人", "值班警力 " };

		List<String[]> dataset = new ArrayList<String[]>();
		String[] str = null;
		for (int i = 0; i < 10; i++) {
			str = new String[5];
			str[0] = "测试";
			str[1] = "测试";
			str[2] = "测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试";
			str[3] = "测试";
			str[4] = "测试";
			dataset.add(str);
		}

		try {
			OutputStream out = new FileOutputStream("D://a.xls");
			new ExportExcelUtil().exportExcel("", title,"","", headers, dataset, out);
			try {
				out.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		System.out.println("excel导出成功！");
	}
	
	/**
	 * Header头部样式
	 * 
	 * @param workbook
	 * @return
	 */
	public static HSSFCellStyle getHeaderStyle(HSSFWorkbook workbook) {
		// 第四步，创建单元格，并设置值表头 设置表头居中
		HSSFCellStyle style = workbook.createCellStyle();
		// 设置这些样式 标题样式
		style.setFillForegroundColor(HSSFColor.SKY_BLUE.index);
		style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
		style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
		style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
		style.setBorderRight(HSSFCellStyle.BORDER_THIN);
		style.setBorderTop(HSSFCellStyle.BORDER_THIN);
		style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
		// 生成一个字体
		HSSFFont font = workbook.createFont();
		font.setColor(HSSFColor.VIOLET.index);
		font.setFontHeightInPoints((short) 12);
		font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
		// 把字体应用到当前的样式
		style.setFont(font);
		return style;
	}

	/**
	 * 标题头部样式
	 * 
	 * @param workbook
	 * @return
	 */
	public static HSSFCellStyle getTitleStyle(HSSFWorkbook workbook) {
		// 第四步，创建单元格，并设置值表头 设置表头居中
		HSSFCellStyle style = workbook.createCellStyle();
		// 设置这些样式 标题样式
		style.setFillForegroundColor(HSSFColor.SKY_BLUE.index);
		style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
		style.setBorderBottom(HSSFCellStyle.BORDER_NONE);
		style.setBorderLeft(HSSFCellStyle.BORDER_NONE);
		style.setBorderRight(HSSFCellStyle.BORDER_NONE);
		style.setBorderTop(HSSFCellStyle.BORDER_NONE);
		style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
		// 生成一个字体
		HSSFFont font = workbook.createFont();
		font.setColor(HSSFColor.VIOLET.index);
		font.setFontHeightInPoints((short) 12);
		font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
		// 把字体应用到当前的样式
		style.setFont(font);
		return style;
	}
	
	/**
	 * 副标题头部样式
	 * 
	 * @param workbook
	 * @return
	 */
	public static HSSFCellStyle getTitle1Style(HSSFWorkbook workbook) {
		// 第四步，创建单元格，并设置值表头 设置表头居中
		HSSFCellStyle style = workbook.createCellStyle();
		// 设置这些样式 标题样式
		style.setFillForegroundColor(HSSFColor.SKY_BLUE.index);
		style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
		style.setBorderBottom(HSSFCellStyle.BORDER_NONE);
		style.setBorderLeft(HSSFCellStyle.BORDER_NONE);
		style.setBorderRight(HSSFCellStyle.BORDER_NONE);
		style.setBorderTop(HSSFCellStyle.BORDER_NONE);
		style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
		// 生成一个字体
		HSSFFont font = workbook.createFont();
		font.setColor(HSSFColor.VIOLET.index);
		font.setFontHeightInPoints((short) 11);
		font.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);
		// 把字体应用到当前的样式
		style.setFont(font);
		return style;
	}

	public static HSSFCellStyle getBodyStyle(HSSFWorkbook workbook) {
		// 生成并设置另一个样式
		HSSFCellStyle style = workbook.createCellStyle();
		style.setFillForegroundColor(HSSFColor.WHITE.index);
		style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
		style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
		style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
		style.setBorderRight(HSSFCellStyle.BORDER_THIN);
		style.setBorderTop(HSSFCellStyle.BORDER_THIN);
		style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
		style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
		// 生成另一个字体
		HSSFFont font2 = workbook.createFont();
		font2.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);
		// 把字体应用到当前的样式
		style.setFont(font2);
		return style;
	}

}
